Scraper for belt-making machines



July 1, 1930. s. SZEWCZYK SCRAPER FOR BELT MAKING MACHINES 2 Sheets-Shea? avwenfoz Filed June 22. 1927 July 1, 1930. s. SZEWCZYK SCRAPER FOR BELT MAKING MACHINES Filed June 22. 1927 2 Shuts-Shut 2 a 2 3 K262 1 u 4/ N\\\ 4 o 3 m w w 3 Patented July 1, 1930 sTAnIsLAw SZEWCZYK, or rAssAro, NEWJERSEY PATENT OFFIC scnnrnn non BELT-MAKING mnonnvns 7 Application filed June 2 2, This invention relates to improvements in belt-making machines, particularl to a scraper for the glue plates on which t e parts of laminated beltsare glued together, and it 5 is the principalobject of my invention to provide a scraper providedwith means for yieldingly engaging the scraper knives with the plates. I V

Another object of the invention is the pro- Io vision of a scraper havingadjustable scraper knives or blades and adapted to be propelled by motor power.

A further object of the invention is the pros vision of a scraper guided along a track and of a constructionwhich is simple,idurable,

yet eificientlyoperating. I

A still further object of the invention is the provision of a scraper adapted to be operated from a motor and equipped with elastic belts for the transmission of the motor power to the wheels of the scraper. I

These and further objects and advantages of the scraper according to my invention will become more fully knownas the description thereof proceeds, and will then be specifically pointed out in the appended claims.

In the accompanying drawings, forming a material part ofthis disclosure:

Fig. 1 is a side elevationof the scraper con structed according to my invention.

Fig. 2 is a top plan viewseen in the direction of arrows 22 of Figure 1. i

Fig. 3 is an end View of the scraper.

Fig. 4 is a plan view of one of the scraper knives, and

Fig. 5 is an edge view thereof.

Fig. 6 is a sectional detail view on a plane passing substantially vertically through the boss and associated parts. i

As illustrated, the scraper according to my invention comprises two bodies or shoes, an upper one 10, and a lower one 11 having bevelled end faces arranged at an inclination to the plates 12 and 13 respectively of the belt making machines, commonly known as the glue-plates. The lower shoe or body 11 is connected to the upper one, by means of the standards or posts 14, 15 respectively, the upper ends of which play within recesses 16, 17 in the upper 1927. Serial No. 200,671.

shoe 10 and slide therein. Collars 18, 19 on. 'i

said rods limit their movement. In order to make the movements of the shoes or bodies 1 1 and 10 against the plates 13 and 12 respectively yieldingly, piston rods 20,21 are attached at their lower ends to the lower. shoe 11 and Work in cylinders 22, 23 having their upper ends resting against plates 24, 25 integrally made with the underface of the shoe 10. Within these cylinders springs 26, 27 are arranged and rest with their lower ends against the ends of the pistons 20, 21 and withtheir upper ends against plates 24, 25.

' its center a boss 28 to which is secured by a pin 32 a member 30 having formed therein an elongated, longitudinally extending slot v31 throughwhich pin 32 extends; On the pin 32 is pivoted the lower end of'a lever 33, while a pin 29 is carried by and projects from the face of member 30. The lever 33 has near its lower end a plurality of semi-circular recesses 34, 35 adapted to engage over the pin 29. The end of a rod 36 is secured in the upper end of'member 30 and is passed through the shoe 10 carrying at the upper face of the same a locking nut 37 while a locking nut 38 serves to lock the pin 32 in anyof its adjusted posi: tions' within slot 31.' p i The knives or scraper blades 39 and 40 are provided with elongated slots 41, allowing the passage of adjusting screws 41 or the like for, adj ustably holding the blades on the beveled edges of the shoes and engage with their upper ends the inner faces of the plates 12 and 13 to c pe every particle of gl therefrom.

. The shoes 10 and 11 move longitudinally to the'plates' 12 13, on wheels 42, arranged' in pairs on axles 43, and theaxles ofone pair of wheels on the upper as well on the lower shoe carry pulleys around which belts 44,45 made from elasticmaterial are guided which are shoes.

are downwardly bent and carry lower brackets 55 adapted to travel on suitable tracks 56, while 57 is a rod connecting the end brackets of the two rods and adj ustably held there in by means of screws or the like.

The operation of the scraper will be clearly understood from the above description, and it will be understood that the operation of lever 33 will press the knives more or less against the glue-plates according to the thickness of the coat thereon to be scraper, while the pistons and springs will provide the necessary yielding during the movement of the shoes along the plates by the motor guided by the roller of the gage rods running on a track;

The belts, 4A, 45 have a certain elasticity to follow the oscillations of the .shoes. Y Such changes as come within the scope of the claims may be made without interference with the inventive idea.

Having thus described myinvention, what Iclaim as new, and desire to secure by Letters Patent is 1. A. scraper for belt-making machines comprising a pair of shoes, adjustable scraper knives at therends of said shoes adapted to engage the glue-plates of a belt-making machine, means for yielding pressing said shoes andtheirknives against said plates, means for moving said shoes along said plates, and gagemeans for guiding the movement of said '2. A scraper for belt-making machines comprising a pair of shoes having beveled end faces, knives adjustably secured to said end, faces, wheels on said shoes adapted to engage the inner faces of the glue-plates of the machine, means for yieldingly connecting the shoes, means for yieldingly pressing said shoesagainst said plates, a motor for driving guide for said-shoes,

depressions on the inner face of the opposite shoe, and means for moving said shoes and their knives along said plates to scrape the same.

5. In a scraper for the glue-plates of beltmakingmachines, the combination of a pair of wheeled shoes having bevelled ends knives attached to said bevelled ends adapted to engage and scrape the inner faces of two glueplates of a belt making machine, with a avmotor to move said shoes along said plates, said guide comprising a pair ofsockets on the upper face of the lower shoe, a pair of bars laterally projecting from the sockets and adjustable means for locking said bars to said sockets, a bar connecting the outer ends of said laterally projecting bars, a pair of brackets on said bar, and wheels on said brackets adapted to travel along a track beside the scraper.

6. Ina scraper of the class described a pair of. shoes bevelled outer ends thereon and, knives on'said outer beveled ends, adjustable andadapted to engage the inner faces of the glue plates of a belt-making machine, a motor for moving said shoes and knives along said plates, and elastic belts for'transmitting the rotation of the motor axle to the axles of the shoe wheels, and a bracket for suspending said motor from one o'f said shoes.

In testimony whereof-I aflix my signature.

STANISL AW SZEWCZYK'.

said wheels, elastic transmission bands guided over pulleys on the wheel axles and on the motor shaft, a gage frame, and means on said frame adapted to travel'along a track for guiding the movements of said shoes. 3. A scraper of the character described comprising a pair of wheeled shoes, a pair of pistons attached at one side to one, of the shoes, cylinders attached to the inner face of the other shoe, springs in said cylinders resting with one of their ends on the end of said pistons and with their opposite ends engaging the end walls of said cylinders for cushioning the movements of the shoes, and a motor for moving said shoes. e

,4. In a scraper of the class described, the combination of two wheeled, shoes having knives, at their ends adapted to engage and V scrape the inner faces of a pair of glue-plates of a belt-making machine, with means for yieldingly guiding the shoes and theirknives against said plates, means for cushioningvthe shoes against each other, anda plurality of posts att-achedat one end to one of the shoes and at theiropposite ends gliding within 

